Mixed results with CFS also. If it's to cheap to be true,,it's generally junk with soft screws or poor quality from my experiences.
Same with Amazons accessories,,check many reviews from several sources first, just my suggestion.

My motto,,, buy the best you can afford or can find,,,and you're generally not disappointed. One funky major part can ruin a complete build and the 10 bucks you might have saved just isn't worth it in the long run,, as far as I'm concerned.